Combining 3D-multispectral and hyperspectral imaging to identify environmental stress treatments imposed during plant growth

Posted by dbos UCSD / Salk

Kavli Affiliate: Timothy Brown | Authors: Frederike Stock, Saswat Panda, Richard Poire, Timothy Brown, Ayesha Akram, Liang Zheng, Huan Lei, Ruyi Zha, Mingrui Zhao, Sebastien Isabelle, Michele Martel, Marc-Andre Comeau, Louis-Philippe Hamel, Pierre-Olivier Lavoie, Marc Andre D’Aoust, Hannah Reithinger, Pooja Saxena, Eric A. Stone, Hongdong Li, Danielle A. Way and Owen K. Atkin | Summary: […]


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Relativistic outflows power a quasi-periodic eruption: constraints on energetics, mass loss, and emission mechanisms

Posted by klaurent MIT

Kavli Affiliate: Erin Kara | Summary:Quasi-periodic eruptions (QPEs) are recurring bursts of X-ray radiation originating from supermassive black holes (SMBHs). They are an unprecedented type of structured, high-amplitude SMBH variability, but the physical origins of their regularity, timescales, energetics, and emission are uncertain. We present new XMM-Newton observations of the QPEs in ZTF19acnskyy/"Ansky", constituting the […]


Continue.. Relativistic outflows power a quasi-periodic eruption: constraints on energetics, mass loss, and emission mechanisms

Relativistic outflows power a quasi-periodic eruption: constraints on energetics, mass loss, and emission mechanisms

Posted by klaurent MIT

Kavli Affiliate: Erin Kara | Summary:Quasi-periodic eruptions (QPEs) are recurring bursts of X-ray radiation originating from supermassive black holes (SMBHs). They are an unprecedented type of structured, high-amplitude SMBH variability, but the physical origins of their regularity, timescales, energetics, and emission are uncertain. We present new XMM-Newton observations of the QPEs in ZTF19acnskyy/“Ansky”, constituting the […]


Continue.. Relativistic outflows power a quasi-periodic eruption: constraints on energetics, mass loss, and emission mechanisms

ScatterWorks: A Python package for building and solving scattering network models

Posted by klaurent Delft

Kavli Affiliate: Anton Akhmerov | Summary:Network models provide an efficient framework for studying non-interacting transport and wave-propagation phenomena in disordered and topological systems. We introduce ScatterWorks, an open-source Python package for building and solving network models. The package uses a compact network representation with composable transformation operations (tile, cut, relink, and union) to enable flexible […]


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Fabrication-free assessment of microwave losses in germanium-based dielectrics and superconductors

Posted by klaurent Cornell

Kavli Affiliate: David Muller | Summary:We present a flip-chip-based sensing scheme to measure effective microwave losses associated with target materials for quantum technologies, without requiring any device fabrication on the material under test. Using this approach, we quantify the microwave losses of a strain-engineered Ge/SiGe quantum well heterostructure and investigate losses arising from its Ge […]


Continue.. Fabrication-free assessment of microwave losses in germanium-based dielectrics and superconductors

Fabrication-free assessment of microwave losses in germanium-based dielectrics and superconductors

Posted by klaurent Cornell

Kavli Affiliate: David Muller | Summary:We present a flip-chip-based sensing scheme to measure effective microwave losses associated with target materials for quantum technologies, without requiring any device fabrication on the material under test. Using this approach, we quantify the microwave losses of a strain-engineered Ge/SiGe quantum well heterostructure and investigate losses arising from its Ge […]


Continue.. Fabrication-free assessment of microwave losses in germanium-based dielectrics and superconductors

PIFFLE: Characterizing the Foreground Contributions from 4 Decades in Halo Mass to the FRB20230907D Dispersion Measure

Posted by klaurent Tokyo

Kavli Affiliate: John Silverman | Summary:We characterize the foreground environment of FRB20230907D, localized to a galaxy at $z=0.464$, which has an observed dispersion measure of $rm DM_rm obs=1031~rm pc~cm^-3$. At its redshift, FRB20230907D lies above the Macquart relation, the expected relation between cosmological dispersion measure and the source redshift, indicating a substantial excess DM along […]


Continue.. PIFFLE: Characterizing the Foreground Contributions from 4 Decades in Halo Mass to the FRB20230907D Dispersion Measure

uMOF: A Universal Database, Benchmark, and Machine Learning Interatomic Potentials for Metal-Organic Frameworks

Posted by klaurent Berkeley

Kavli Affiliate: Kristin Persson | Summary:Foundation machine learning interatomic potentials (MLIPs) deliver near-ab-initio accuracy at a fraction of the computational cost, yet their promise for Metal-organic Frameworks (MOFs) remains largely unrealized as large unit cells make first-principles training data expensive to generate, fine-tuned models are scarce, and experimentally grounded benchmarks are scarcer still. We introduce […]


Continue.. uMOF: A Universal Database, Benchmark, and Machine Learning Interatomic Potentials for Metal-Organic Frameworks

uMOF: A Universal Database, Benchmark, and Machine Learning Interatomic Potentials for Metal-Organic Frameworks

Posted by klaurent Berkeley

Kavli Affiliate: Kristin Persson | Summary:Foundation machine learning interatomic potentials (MLIPs) deliver near-ab-initio accuracy at a fraction of the computational cost, yet their promise for Metal-organic Frameworks (MOFs) remains largely unrealized as large unit cells make first-principles training data expensive to generate, fine-tuned models are scarce, and experimentally grounded benchmarks are scarcer still. We introduce […]


Continue.. uMOF: A Universal Database, Benchmark, and Machine Learning Interatomic Potentials for Metal-Organic Frameworks

Cooling-regulated gas accretion onto gap-opening planets

Posted by klaurent Peking

Kavli Affiliate: Ruobing Dong | Summary:Gas accretion onto forming planets controls the final masses of giant planets and provides observable signatures of ongoing formation. How this process depends on the cooling properties of these newly attracted gas remains poorly constrained. We present long-term, three-dimensional global hydrodynamical simulations to quantify gas accretion onto gap-opening planets in […]


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